Bruins looking to deal in tight trade market

As his mission requires, Bruins general manager Peter Chiarelli is trying to make his team better prior to the March 5 trade deadline. The deal that Chiarelli would like to make to improve his defense, however, may not be possible.

He’s all right with that.

The current trade market could fill the textbooks of Economics 101 courses around the country. Among defensemen, the principle in play is supply and demand. The first commodity is scarce. The second is through the roof. The result: Prices are more inflated than Facebook’s P/E ratio.